Stowage lift



Dec., 6, 1949 N. P. E. ANDERSEN sTowAGE LIFT 5 Sheets-Sheet l FiledSept. 19, 1946 l INVENTOR.a

Maa/1f Dec. 6, 1949 N. P. E. ANDERSEN STOWAGE LIFTV 3 Sheets-Sheet 2Filed Sept. 19, 1946 INVENTOR. ma@ Zat WL @W Dec, 6, w49

N. P. E. ANDERSEN STOWAGE LIFT 3 Sheets-Sheet 3 Filed Sept. 19, 1946 R.vn/ ma d/ mu mw Patented Dec. 6, 1.949

Urn-rsa STATES PATENT OFFICE STQWAGELIFT Nils Peter Erik Andersen,.ElmGrove, Wis.a's

signor to Harni'schfeger Corporation, Milwaukee, Wis., a. corporation-ofWisconsin Application'september 19, 1946y Serial No.. 697,973

This invention relates to stevedoring tackle intended for use betweendecks of a ship as an aid in stcwing and breaking. out package cargo,and it resides more. specifically in a novel form of the same including.a base-guided, self-elevating high-lift hook joined by hoisting lineswith aV portable trolley adapted to engage the lower anges of overheaddeck beams to provide an overhead anchorage from. which hoistingv forcemay be applied to the hook at any point throughout the hold.

In handling cargo between decks. heavy packages are usually moved to andfrom the hatches and stowed positions by skidding them on the deck.Every effort is made to avoid the necessity of raising such heavypackages for stowagev in upper courses of cargo because of thedifficulty of locating skids upon which such` packages may be warped tothe levelv desired. As a result, cargo space is often leftunused unlesssuicient light packages suitable for stowage on upper levels areavailable. No apparatus suiiciently portable and universalin itsfunction to permit a heavy lift to be made at any point desiredthroughout the hold has heretofore been available. Through the instantinvention. however.,v means are provided by which a heavy lift carried`close tothe maximum height -of the hold", can be made at any pointthroughout the hold by comparatively simple and easily performed riggingoperations.

This invention is herein Idescribed by reference to the accompanyingvdrawings forming a part hereof and in which there is set forth by' wayof illustration and not of limitation one Vform in which the apparatusof this invention may be v embodied.

In the drawings:

Fig. 1 is a side view in elevation of one form of the apparatus -ofVthis invention shown in position within a fragment of a ships hold, thelatter being shown in section;

Fig. 2 is a front View in elevation of the apparatus shown in Fig. l;

Fig. 3 is an enlarged detail View `in transverse section of theapparatus shown in Fig. l viewed through the plane 3-3 there indicated;

Fig. 4 is an enlarged detail fragmentary side view in elevation withparts broken away :and in section of the apparatus shown in Fig. 1';.and

Figure 5 is an enlarged perspective view ofthe trolley.

As shown in the .drawings Vthe apparatus of this invention is adaptedfor usewithinthe'hold of a ship I having a .plurality .of `decks 2 and 3the latter being of conventional construction reinforced. by steelchannel'or angle deck beams 4i. As, a general practice the deck beams 4'are ordinarily positioned parallel to one another athwartship with auniform spacing throughout the vessel. Depending upon this habit ofcon,- struction the apparatus of this invention is provided withanoverhead anchorage trolley 6 comprising a framek 1, transverse axles8,v outwardly facing wheels Si, inwardly facing wheels @I and a headblock Ill. Secured. toV the` frame 0f the trolley lis a pairofhorizontally acting retain? ing rollers -Il so. positioned as tocooperate with wheels @I and to positively.y retain the trolley Yli uponthe lower anges of anladjacent pair of deck beams 41.

' The trolleyispreferably made of the lightest possible constructionconsistent with strength, usingV for the lpurpose lightweight alloys andthe like with the object in viewv of confining the weight ofthesame'within limits which can be conveniently handled manually. To permitshifting of` the trolley 6 `from one4 pairoi deck beams ll to anotherthelaxles 8 are provided with detachable Sleeves I2 which may be manuallyseparated or locked in place as desired, thus permitting the trolley tobe removed manually from one pair of deck beams 4' and placed upon anyother desired. .Head .block It is carried on a swivel mounting not shownborne upon a subcarriage I3 having rollers I4 thus permitting the headblock I0 to `turn .or to be shifted longitudinally of the axle toaccommodate to the position of the load.

Arranged .to be joined with the block IQ by means of .a hoisting line l5is a high-lift base.- supported hook assembly I6 made up of a base `Ig'Ihaving a fulcrum support 42, -a boom I8 of length greater than thespacing .between decks and a hook end- I9. Mounted 4.upon the .boom I8are guide sheaves '20 `and 2l arranged to lead the hoistingfline I5 toa-fair engagement with sheave 22 of a longitudinally movable double block23 carried on the lower part of the boom I8 as shown. The longitudinallymovable double block 23 is made up of a trunnion'shaft 2t carrying endyrollers `2 5 Aand .having `a transverse threaded hole adapted .toengage an actuating screw 26 mounted uponboom I8 as shown in Fig. .4.The double block-23 alsoA includes in addition .to the sheave .2.2Ypreviously referred to, a similar sheave 271 mounted .as shown moreAclearly in Fig. 3. End V`rollers 25 .are positioned between and guided.by inwardly .facing guide :rails f5 Asecured to the inner 'faces of thechannels making up the boom I8.

Hoisting line I after passing around sheave 22 extends to and passesaround a sheave 28 mounted near the upper end of the boom I8 and thenreturns to the sheave 21, and after passing around the same extends to adead end connection 29 secured to the upper end of the boom I8.

The screw 26 previously mentioned is mounted for rotation in an upperbearing 30 and extends downwardly through a lower bearing 3| to joinwith a beveled driving pinion 32 secured to its lower end. The pinion 32is arranged to be driven by gear 33 mounted upon the output shaft of apower unit 34 carried upon the base I1. The base I'I is also providedwith a power supply cable reel 35 from which a flexible power cable 3Bextends to be joined with suitable power outthe ship. Extending upwardlyfrom the base Il in the fashion of a hand truck handle is a handle bar3l permitting the hook I6 to be manually shifted, an operation which isfacilitated by the balancing effect of the power unit 34 with respect tothe boom I8.

In operation with the trolley 6 in place for the performance of a lift,the hook end I9 of the assembly I6 is manually brought to a positionapproximately below the trolley 6. The power unit 34 is then operated bymanipulation of control 38 so as to move the double block 23 upwardly onthe boom I8 making available slack in the hoisting line I5. The end 39of the line I5 is then removed from its anchorage on the boom I8 andmanually reeved through the head block I8 and brought back to itsanchorage and secured. The apparatus is now in condition to perform alift which is accomplished by manipulating the control 38 so as to causethe double block 23 to be moved downwardly on the boom I8 thus raisingthe boom I8 to a position, for example, as indicated by broken lines inFig. 1. Thereupon slings may be adjusted to a package 4D as shown andthereafter by further operation of the power unit 34 the package 40 maybe brought to the position shown in Fig. 1. It will be understood, ofcourse, that horizontal movement of the package 4U throughout the lengthof the beams 4 may be manually effected in conjunction with the liftjust described and in this way cargo may be stowed or broken out fromupper courses even though of substantial bulk and weight.

By reason of the ready portability of the overhead anchorage trolley E,arrangements may be quickly made for the lifting of loads at any pointthroughout the hold. When not in use the base supported hook assemblymay be readily moved out of the way and stowed. The mechanism further issimple and obvious in its manner of functioning and may readily beoperated by skilled stevedores without special instruction orexperience. By reason of the nature and construction of the basesupported high-lift hook utilization of the head room of the hold to adegree exceeding that of the usual hoisting means is made possible.

A further aspect of utility of the apparatus of this invention is theavailability of the hoisting line I5 for use as a whip line or skid linefor dragging packages across the deck. When it is desired that the lineI5 be used in this manner the parts are raised to the position shown inFig. 1 and the hook I6 secured to the trolley 6 by a temporaryconnection not shown. This permits CII the end 39 of line I5 to beremoved from its achorage at the end of boom I8 and upon manipulation ofthe control 38 to be fed out over sheave 2| for use as a whip or skidline. In case of such use the trolley 6 is preferably locked againsthorizontal movement by means not shown so as to provide sufficientreaction to permit the sliding of a heavy package across the deck.

I claim:

l. In a cargo stowing tackle adapted for use between decks of a cargovessel the combination comprising an overhead anchorage means adapted toengage and be secured to overhead deck beams of a deck of said cargovessel; a base supported high-lift hook assembly having a hook endadapted to be raised and lowered, a base end adapted for fulcrumedsupport on a deck beneath said rst mentioned deck, and a boom portion oflets situated in convenient locations throughout length substantiallygreater than the spacing between said decks, joining said base end andhook end; and power operated hoisting means mounted on said high-lifthook assembly adapted to engage said overhead anchorage means and thehook end of said base supported hook and to move said hook end to andfrom said anchorage means.

- 2. In a cargo stowing tackle the combination comprising a shiftableoverhead anchorage means adapted to engage and derive support fromoverhead deck beams of a deck of a, cargo vessel, a base supportedhigh-lift hook assembly having a hook end adapted to be raised andlowered, a base end adapted for fulcrumed support on a deck beneath saidfirst mentioned deck, and a boom portion of length substantially greaterthan the spacing between decks joining said base end land hook end; andpower operated hoisting means adapted to engage said overhead anchoragemeans and the hook end of said base supported hook and to move said hookend to and from said anchorage means.

3. In a cargo stowing tackle the combination including-an overheadanchorage means comprising a trolley adapted to engage and derivesupport from the lower flanges of overhead deck beams of a cargo vessel,said trolley including a head block; a base supported high-lift hookassembly having a hook end adapted to be raised 'and lowered, a base endadapted for fulcrumed support on a deck beneath said rst mentioned deck,and a boom portion of length substantially greater than the spacingbetween decks, joining said base end and hook end; a hoisting lineextending from said hook end of said high-lift hook assembly to saidhead block on said trolley and back to said boom; and power operatedmeans mounted on said high-lift hook assembly adapted to extend andretract said hoisting line to cause raising and lowering of said hookend.

NILS PETER ERIK ANDERSEN.

REFERENCES CITED The following references are of record in the ille ofthis patent:

UNITED STATES PATENTS Number Namev Date 153,643 Wendel July 28, 18741,450,882 Beckwith Apr. 3, 1923 1,724,411 Pitcher Aug. 13, 19291,765,408 Elliott June 24, 1930 2,019,760 Mattro Nov. 5, 1935 2,196,065Everard Apr. 2, 1940

